La fuerza y el movimiento (Forces and Motion)

Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Young readers will discover amazing facts about birds' nest-building habits and other information with this new guide featuring Internet links to each of the book's topics.

Un virus muy dañino llama a la puerta de los humanos y en muy poco tiempo cambia el mundo por completo. Todo es soledad, silencio, confinamiento. Hasta los animales echan en falta a los niños, sus juegos, sus risas... ¿Será capaz la humanidad de adaptarse a esta nueva situación y, unida, luchar para recuperar la vida? Esta historia refleja todo un año de pandemia y, a su vez, es un canto de esperanza y fuerza.

Take a fascinating trip into the depths of Carlsbad Caverns and learn arithmetic patterns along the way. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn arithmetic patterns while engaged in reading about the various patterns that can be found in the miles of caves in Carlsbad Caverns National Park. The full-color images, math graphs and charts, and practice problems make learning math and language arts concepts easy and fun. The table of contents, glossary, and...

¿Sabías que Ami tiene un diario secreto desde que era muy, muy pequeño? ¡Es hora de que lo tengas en tus manos! Diviértete leyendo las páginas originales, encontrarás frases secretas y podrás hacer tu propio diario con actividades que te convertirán en el terrícola número uno del mundo mundial.